CN107689861A - Channel maps and method and apparatus, base station and the user equipment of detection - Google Patents
Channel maps and method and apparatus, base station and the user equipment of detection Download PDFInfo
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- CN107689861A CN107689861A CN201610640659.2A CN201610640659A CN107689861A CN 107689861 A CN107689861 A CN 107689861A CN 201610640659 A CN201610640659 A CN 201610640659A CN 107689861 A CN107689861 A CN 107689861A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Abstract
The present invention relates to a kind of channel mapping method of time division duplex (TDD) pattern and device, use the channel detection method in the base station of the channel mapping method and device, the user equipment of time division duplex (TDD) pattern and device and the user equipment of the use channel detection method and device.The channel mapping method of time division duplex (TDD) pattern includes：In first carrier frequency, first broadcast channel and the second broadcast channel are alternately mapped in the 6th subframe in multiple subframes that each frame that the uplink of the tdd mode configures includes, and the 3rd broadcast channel is mapped in the first subframe in the multiple subframe；And in the second carrier frequency, the first broadcast channel is mapped in the 6th subframe every a frame.
Description
Technical field
The present invention relates to moving communicating field, more particularly it relates to a kind of channel of time division duplex (TDD) pattern
Mapping method and device, using in the base station of the channel mapping method and device, the user equipment of time division duplex (TDD) pattern
Channel detection method and device and the user equipment for using the channel detection method and device.
Background technology
Development with Mobile Communication Industry and the continuous growth for mobile data services demand, people are for movement
The requirement more and more higher of the speed and service quality (Qos) of communication.Currently, based on cellular arrowband Internet of Things (Narrow Band
Internet of Things, NB-IoT) as an important branch of all things on earth internet.NB-IoT is implemented in Cellular Networks
Network, about 180KHz frequency range is only consumed, GSM network, UMTS network or LTE network can be deployed directly into, be deployed to reducing
Originally, smooth upgrade is realized.
In the NB-IoT scenes based on LTE network system, either Long Term Evolution (LTE) system or advanced long-term
Evolution system (LTE-A), all it is the mainly time-frequency bidimensional in an ofdm system based on OFDM (OFDM) technology
Data mode.Therefore, it is necessary to which the signal that transmits will be needed on time-frequency bidimensional to Physical Resource Block (PRB) and subframe therein
Reasonably mapped, to realize the high efficiency of transmission for signal, avoid resource contention and user equipment (UE) for receiving
Signal detection.
FDD (FDD) and two kinds of different dual-modes that time division duplex (TDD) is LTE standard.In fdd mode
Under, two independent channel links be present, one is used for transmission information downwards, and another is used for being passed up information.Two letters
A protection frequency range between road link be present, to prevent from producing between neighbouring transmitter and receiver interfering.In TDD moulds
Under formula, transmitting and reception signal are carried out in the different time-gap of same frequency channel, each other using certain guarantee
Time is separated.FDD is because up-downgoing is carried out in different frequency range simultaneously, so having very strong data transmission capabilities, still
Also the requirement to frequency spectrum resource is higher.And it will then be better met for narrow-band transmission mode as NB-IoT, TDD.
At present, in the channel mapping scheme of the fdd mode under NB-IoT scenes, master sync signal (PSS) is mapped in often
The 6th subframe (subframe #5, the first subframe in plurality of subframe are designated as subframe #0) in frame (10ms), auxiliary synchronous signals
(SSS) the tenth subframe (subframe #9) is mapped in, and Physical Broadcast Channel (PBCH) is mapped in the first subframe (subframe #0).It is right
In tdd mode, if it is considered that continue to use the channel mapping scheme of fdd mode, then because tdd mode is with setting to 0 on neutron frame #9 is
Line link, SSS transmission can not be carried out.
Accordingly, it is desirable to provide a kind of channel mapping method for tdd mode, it can be in the main signal of fdd mode
On the basis of sequences Design, configured according to the uplink-downlink of tdd mode, realize master sync signal (PSS), auxiliary same
The reasonable mapping of signal (SSS) and Physical Broadcast Channel (PBCH) etc. is walked, while extra expense need not be introduced.In addition, also need
The channel detection method in a kind of user equipment of tdd mode is provided, it causes user equipment (UE) to be based on being used for TDD
The channel mapping scheme of pattern, detect to realize master sync signal (PSS), auxiliary synchronous signals (SSS) and physical broadcast exactly
Channel (PBCH) etc., to complete the processes such as cell searching synchronization.
The content of the invention
In view of the above problems, the present invention provides channel mapping method and device, the use of a kind of time division duplex (TDD) pattern
The base station of the channel mapping method and device, time division duplex (TDD) pattern user equipment in channel detection method and device,
And use the channel detection method and the user equipment of device.
According to one embodiment of present invention, there is provided a kind of channel mapping method of time division duplex (TDD) pattern, bag
Include：In first carrier frequency, the first broadcast channel and the second broadcast channel are alternately mapped to the uplink of the tdd mode
In the 6th subframe in multiple subframes that each frame of road-downlink configuration includes, and the 3rd broadcast channel is mapped to
In the first subframe in the multiple subframe；And in the second carrier frequency, the first broadcast channel is mapped to every a frame
In 6th subframe.
In addition, channel mapping method according to an embodiment of the invention, wherein the first carrier frequency and described
There is predetermined frequency shift (FS) between second carrier frequency.
In addition, channel mapping method according to an embodiment of the invention, wherein first broadcast channel, described
Two broadcast channels and the 3rd broadcast channel are primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively.
According to another embodiment of the invention, there is provided a kind of channel mapping device of time division duplex (TDD) pattern, bag
Include：First map unit, it is configured in first carrier frequency, the first broadcast channel and the second broadcast channel is alternately mapped to
In the 6th subframe in multiple subframes that each frame of the uplink-downlink configuration of the tdd mode includes, and will
3rd broadcast channel is mapped in the first subframe in the multiple subframe；And second map unit, it is configured to carry second
In wave frequency rate, the first broadcast channel is mapped in the 6th subframe every a frame.
In addition, channel mapping device according to another embodiment of the invention, wherein the first carrier frequency and institute
Stating between the second carrier frequency has predetermined frequency shift (FS).
In addition, channel mapping device according to another embodiment of the invention, wherein first broadcast channel, described
Second broadcast channel and the 3rd broadcast channel are primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively.
According to still another embodiment of the invention, there is provided a kind of base station of time division duplex (TDD) pattern, including as above institute
The channel mapping device stated.
According to still another embodiment of the invention, there is provided the letter in a kind of user equipment of time division duplex (TDD) pattern
Road detection method, including：The frame that the uplink-downlink of the tdd mode received with the scanning of predetermined frequency range configures,
Until detecting the first broadcast channel in special carrier frequency；Under the frame that special carrier frequency scanning receives
One frame, wherein in the case of detecting the second broadcast channel in the next frame, the special carrier frequency is first carrier
Frequency, the next frame is frequency scanned in the first carrier, to detect the 3rd broadcast channel；Do not examined in the next frame
In the case of measuring second broadcast channel, the special carrier frequency is the second carrier frequency, in first carrier frequency
Rate scans the next frame, to detect second broadcast channel, and it is described next in first carrier frequency scanning
Frame, to detect the 3rd broadcast channel.
In addition, channel detection method according to still another embodiment of the invention, wherein the first carrier frequency and institute
Stating between the second carrier frequency has predetermined frequency shift (FS).
In addition, channel detection method according to still another embodiment of the invention, wherein first broadcast channel and institute
The 6th subframe in the second broadcast channel multiple subframes that alternately each frame in the first carrier frequency includes is stated, it is described
The first subframe that 3rd broadcast channel is in the multiple subframe, and first broadcast channel is in described every a frame
The 6th subframe in multiple subframes of second carrier frequency.
In addition, channel detection method according to still another embodiment of the invention, wherein first broadcast channel, described
Second broadcast channel and the 3rd broadcast channel are primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively.
According to still a further embodiment, there is provided a kind of Channel Detection device of time division duplex (TDD) pattern, bag
Include：Receiving unit, it is configured to receive the signal frame of the uplink-downlink configuration of the tdd mode；And Channel Detection
Unit, a frame of the uplink-downlink configuration of the tdd mode received with the scanning of predetermined frequency range is configured to, until
The first broadcast channel is detected in special carrier frequency；In the next of the frame that special carrier frequency scanning receives
Frame, wherein in the case of detecting the second broadcast channel in the next frame, the special carrier frequency is first carrier frequency
Rate, the next frame is frequency scanned in the first carrier, to detect the 3rd broadcast channel；Do not detected in the next frame
In the case of second broadcast channel, the special carrier frequency is the second carrier frequency, in the first carrier frequency
The next frame is scanned, to detect second broadcast channel, and the next frame is frequency scanned in the first carrier,
To detect the 3rd broadcast channel.
In addition, Channel Detection device according to still a further embodiment, wherein the first carrier frequency and institute
Stating between the second carrier frequency has predetermined frequency shift (FS).
In addition, Channel Detection device according to still a further embodiment, wherein first broadcast channel and institute
The 6th subframe in the second broadcast channel multiple subframes that alternately each frame in the first carrier frequency includes is stated, it is described
The first subframe that 3rd broadcast channel is in the multiple subframe, and first broadcast channel is in described every a frame
The 6th subframe in multiple subframes of second carrier frequency.
In addition, Channel Detection device according to still a further embodiment, wherein first broadcast channel, described
Second broadcast channel and the 3rd broadcast channel are primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively.
According to still a further embodiment, there is provided a kind of user equipment of time division duplex (TDD) pattern, including such as
Upper described Channel Detection device.
Channel mapping method, device and base station for tdd mode according to embodiments of the present invention, it can be in FDD moulds
On the basis of the main signal sequences Design of formula, configured according to the uplink-downlink of tdd mode, realize main synchronous letter
The reasonable mapping of number (PSS), auxiliary synchronous signals (SSS) and Physical Broadcast Channel (PBCH) etc., while without introducing extra open
Pin.In addition, the channel detection method, device and user equipment for tdd mode according to embodiments of the present invention, it can be based on
For the channel mapping scheme of tdd mode, detect to realize master sync signal (PSS), auxiliary synchronous signals (SSS) and thing exactly
Broadcast channel (PBCH) etc. is managed, to complete the processes such as cell searching synchronization.
It is to be understood that foregoing general description and following detailed description are both exemplary, and it is intended to
In the further explanation for providing claimed technology.
Brief description of the drawings
The embodiment of the present invention is described in more detail in conjunction with the accompanying drawings, above-mentioned and other purpose of the invention,
Feature and advantage will be apparent.Accompanying drawing is used for providing further understanding the embodiment of the present invention, and forms explanation
A part for book, it is used to explain the present invention together with the embodiment of the present invention, is not construed as limiting the invention.In the accompanying drawings,
Identical reference number typically represents same parts or step.
Fig. 1 is the schematic diagram of general introduction communication system according to embodiments of the present invention.
Fig. 2 is the schematic diagram for the uplink-downlink configuration for illustrating tdd mode.
Fig. 3 is the flow chart of the channel mapping method of diagram tdd mode according to embodiments of the present invention.
Fig. 4 is the schematic diagram of the channel mapping of diagram tdd mode according to embodiments of the present invention.
Fig. 5 is the block diagram of the channel mapping device of diagram tdd mode according to embodiments of the present invention.
Fig. 6 is the block diagram of the base station of diagram tdd mode according to embodiments of the present invention.
Fig. 7 is the flow chart of the channel detection method of diagram tdd mode according to embodiments of the present invention.
Fig. 8 is the block diagram of the Channel Detection device of diagram tdd mode according to embodiments of the present invention.
Fig. 9 is the block diagram of the user equipment of diagram tdd mode according to embodiments of the present invention.
Figure 10 A and 10B are the letters of the Channel Detection Time and tdd mode according to embodiments of the present invention that illustrate fdd mode
The schematic diagram of road detection time.
Embodiment
Become apparent in order that obtaining the object, technical solutions and advantages of the present invention, root is described in detail below with reference to accompanying drawings
According to the example embodiment of the present invention.Obviously, described embodiment is only the part of the embodiment of the present invention, rather than this hair
Bright whole embodiments, it should be appreciated that the present invention is not limited by example embodiment described herein.Described in the present invention
The embodiment of the present invention, those skilled in the art's all other embodiment resulting in the case where not paying creative work
It should all fall under the scope of the present invention.
Fig. 1 is the schematic diagram of general introduction communication system according to embodiments of the present invention.As shown in figure 1, implemented according to the present invention
The communication system of example includes base station 10 and user equipment (UE) 20.Base station 10 and user equipment 20 in predetermined communication channel,
Perform the transmitting-receiving of the signal of communication based on predetermined protocol.
Present invention is primarily concerned with the NB-IoT scenes based on LTE network system.FDD (FDD) and time division duplex
(TDD) be LTE standard two kinds of different dual-modes, wherein TDD will then better meet as NB-IoT narrow-band and pass
Defeated pattern.Need to consider that the uplink-downlink of tdd mode is configured to carry out the mapping of the channel under NB-IoT scenes.
Fig. 2 is the schematic diagram for the uplink-downlink configuration for illustrating tdd mode.
As shown in Fig. 2 in tdd mode, in uplink-downlink is with configuration 6 is set to 0, complete descending chain
Way frame is subframe #0 and subframe #5, and it is respectively used to PBCH and PSS mapping.In addition, part special subframe, i.e. subframe #1 and
Do not have enough downlink OFDM symbols in descending pilot frequency time slot (DwPTS) in subframe #6.
In order to solve the above problems, uplink-downlink configuration and fdd mode of the present invention based on tdd mode
Main signal sequences Design, there is provided a kind of channel mapping scheme of tdd mode, it for PSS by extending in its time domain
Cycle, and make its doubled in density in frequency to keep detection probability and detection time, for SSS and PBCH then in frequency
Upper holding density.Specifically, will be described in detail with reference to the accompanying drawings using the channel mapping method and letter using the channel mapping scheme
Road detection method.
First, the channel mapping method according to the present invention is described into reference picture 3.Channel according to an embodiment of the invention reflects
Shooting method comprises the following steps：
In step S301, in first carrier frequency, the first broadcast channel and the second broadcast channel are alternately mapped to
In the 6th subframe in multiple subframes that each frame of the uplink-downlink configuration of tdd mode includes.The present invention's
In one embodiment, the first broadcast channel and the second broadcast channel are master sync signal (PSS) channel, auxiliary synchronous signals respectively
(SSS) channel, the 6th subframe are subframe #5.That is, PSS and SSS, which interweaves, is mapped to subframe #5.Hereafter, processing enters
Step S302.
In step s 302, in first carrier frequency, the 3rd broadcast channel is mapped in the multiple subframe
In one subframe.In one embodiment of the invention, the 3rd broadcast channel is Physical Broadcast Channel (PBCH).Hereafter, handle into
To step S303.
In step S303, in the second carrier frequency, the first broadcast channel is mapped to the 6th son every a frame
On frame.In one embodiment of the invention, have between the first carrier frequency and second carrier frequency predetermined
Frequency shift (FS), so that it is guaranteed that the user equipment (UE) of reception signal can successfully carry out Channel Detection.
The channel mapping of tdd mode according to embodiments of the present invention is described with further reference to Fig. 4.As shown in figure 4, first
On carrier frequency a, the alternately mapping PSS and SSS, and PBCH is mapped on subframe #0 on subframe #5.In addition, in the second carrier wave
On frequency b, PSS is mapped on subframe #5 every a frame.Have between first carrier frequency a and the second carrier frequency b predetermined
Frequency shift (FS), for example, the half of frequency range.
In this way, in the channel mapping method of tdd mode according to embodiments of the present invention, on frequency domain for, first
Map PSS on carrier frequency a and the second carrier frequency b, at the same in time domain for, PSS is mapped every a frame, so as to maintain
PSS global density, and corresponding detection probability and detection time.And for SSS and PBCH then maintain its in frequency domain and
Density in time domain, and correspondingly continued to use the design of the signal sequence under fdd mode.
In addition, the channel mapping method not limited to this of tdd mode according to embodiments of the present invention.In alternate embodiment
In, PSS and SSS can be interweaved and be mapped to subframe #0, while PBCH is mapped to subframe #5.So configured channel mapping side
Method, although the signal sequence design under changing fdd mode, equally realizes and keep PSS, SSS and PBCH entirety close
Degree and corresponding detection probability and detection time.
Fig. 5 is the block diagram of the channel mapping device of diagram tdd mode according to embodiments of the present invention.As shown in figure 5, according to
The channel mapping device 50 of the tdd mode of the embodiment of the present invention includes the first map unit 501 and the second map unit 502.
Specifically, first map unit 501 is configured in first carrier frequency, by the first broadcast channel and second
In multiple subframes that each frame that broadcast channel is alternately mapped to the uplink-downlink configuration of the tdd mode includes
The 6th subframe on, and the 3rd broadcast channel is mapped in the first subframe in the multiple subframe.Second mapping
Unit 502 is configured in the second carrier frequency, and the first broadcast channel is mapped in the 6th subframe every a frame.
Fig. 6 is the block diagram of the base station of diagram tdd mode according to embodiments of the present invention.As shown in fig. 6, according to of the invention real
Applying the base station 10 of the tdd mode of example includes the channel mapping device of tdd mode for the embodiment of the present invention that above-mentioned reference picture 5 describes
50.The each unit for the channel mapping device 50 that base station 10 includes is identical with the description of above-mentioned reference picture 3, will omit its repetition herein
Description.
In addition, so it is easy to understand that the base station 10 of tdd mode according to embodiments of the present invention can also include other certainly
Component, the component closely related with the present invention is only shown in Fig. 6.
The channel mapping method of tdd mode according to embodiments of the present invention is described in reference picture 3 to Fig. 6 and is used and is somebody's turn to do
After the channel mapping device of channel mapping method and base station, further described hereinafter with reference to Fig. 7 to Figure 10 B corresponding to basis
The channel detection method of the channel mapping method of the tdd mode of the embodiment of the present invention, and the letter using the channel detection method
Road detection means and user equipment.
Fig. 7 is the flow chart of the channel detection method of diagram tdd mode according to embodiments of the present invention.According to the present invention's
The channel detection method of embodiment comprises the following steps：
In step s 701, the uplink-downlink configuration of the tdd mode received is scanned with predetermined frequency range
One frame, until detecting the first broadcast channel in special carrier frequency.As described above, in one embodiment of the invention, the
One broadcast channel is master sync signal (PSS) channel.Detection for PSS, such as can be that to do slip to local sequence related,
The position of peak value is PSS position.Hereafter, processing enters step S702.
In step S702, in the next frame for the frame that special carrier frequency scanning receives.The present invention's
In one embodiment, the next frame for scanning a frame for reception is the detection for carrying out the second broadcast channel, that is, carries out SSS
Detection.Hereafter, processing enters step S703.
In step S703, judge the next frame of the frame by being received in special carrier frequency scanning, be
It is no to detect the second broadcast channel.
If obtaining positive result in step S703, i.e., SSS is detected in the next frame of a frame, then handled
Enter step S704.
In step S704, it is first carrier frequency to determine the special carrier frequency, is continued in first carrier frequency
Rate scans the next frame, to detect the 3rd broadcast channel.In one embodiment of the present of invention, the 3rd broadcast channel is physics
Broadcast channel (PBCH).After synchronizing signal (PSS and SSS) has been detected, by detecting and decoding PBCH, to obtain correlation
System information.
If on the contrary, obtaining negative decision in step S503, i.e., fail to detect in the next frame of a frame
SSS, then processing enter step S705.
In step S705, the special carrier frequency is the second carrier frequency, and institute is frequency scanned in the first carrier
Next frame is stated, to detect second broadcast channel.In one embodiment of the present of invention, second carrier frequency with it is described
First carrier frequency has the predetermined frequency shift (FS) described above with reference to Fig. 3 and Fig. 4.If for example, from 0 to NPRBIn/2
Frequency at detect PSS, but fail to detect SSS in the next frame, it indicates that further have with the frequency it is predetermined
Related SSS is detected at the higher frequency of frequency shift (FS).If from NPRB/ 2 arrive NPRBIn frequency at detect PSS, still
Fail to detect SSS in the next frame, it indicates that further there is examining more at low frequency for predetermined frequency offset with the frequency
Survey related SSS.Hereafter, processing enters step S706.
In step S706, continue to frequency scan the next frame in the first carrier, to detect that the 3rd broadcast is believed
Road.
Used in a frame of the uplink-downlink configuration of the tdd mode of reception above by reference to Fig. 3 and Fig. 4
The situation of the channel mapping method of the tdd mode according to embodiments of the present invention of description, by Fig. 7 descriptions according to of the invention real
Apply each frame bag of PSS and SSS alternatings in the first carrier frequency that the channel detection method of the tdd mode of example detects
Subframe #5, the subframe #0 that PBCH is in the multiple subframe in the multiple subframes contained, and PSS is also in institute every a frame
State the subframe #5 in multiple subframes of the second carrier frequency.
Fig. 8 is the block diagram of the Channel Detection device of diagram tdd mode according to embodiments of the present invention.As shown in figure 8, according to
The Channel Detection device 80 of the tdd mode of the embodiment of the present invention includes receiving unit 801 and channel detection unit 802.
Specifically, the receiving unit 801 is configured to receive the uplink-downlink configuration of the tdd mode
Signal frame.The channel detection unit 802 be configured to predetermined frequency range scanning receive the tdd mode up-link-under
One frame of line link configuration, until detecting the first broadcast channel in special carrier frequency；Scanned in the special carrier frequency
The next frame of the frame received, wherein in the case of the second broadcast channel is detected in the next frame, it is described specific
Carrier frequency is first carrier frequency, the next frame is frequency scanned in the first carrier, to detect the 3rd broadcast channel；
In the case of second broadcast channel is not detected by the next frame, the special carrier frequency is the second carrier frequency
Rate, the next frame is frequency scanned in first carrier, to detect second broadcast channel, and in first carrier frequency
Rate scans the next frame, to detect the 3rd broadcast channel.In one embodiment of the invention, the first carrier
There is predetermined frequency shift (FS) between frequency and second carrier frequency.PSS that the Channel Detection device 80 detects and
Subframe #5, PBCH in SSS multiple subframes that alternately each frame in the first carrier frequency includes are in the multiple
Subframe #0 in subframe, and PSS is also every the subframe #5 in multiple subframes that a frame is in second carrier frequency.
Fig. 9 is the block diagram of the user equipment of diagram tdd mode according to embodiments of the present invention.As shown in figure 9, according to this hair
The user equipment 20 of the tdd mode of bright embodiment includes the channel of the tdd mode of the embodiment of the present invention of above-mentioned reference picture 8 description
Detection means 80.The each unit for the Channel Detection device 80 that user equipment 20 includes is identical with the description of above-mentioned reference picture 8, herein
Its repeated description will be omitted.
In addition, so it is easy to understand that the user equipment 20 of tdd mode according to embodiments of the present invention can also include certainly
Other assemblies, the component closely related with the present invention is only shown in Fig. 9.
Figure 10 A and 10B are the letters of the Channel Detection Time and tdd mode according to embodiments of the present invention that illustrate fdd mode
The schematic diagram of road detection time.
As shown in Figure 10 A, in the fdd mode, perform Channel Detection needed for maximum channel detection time be 10ms ×
100PRB=1000ms.
As shown in Figure 10 B, under tdd mode according to embodiments of the present invention, the maximum channel needed for Channel Detection is performed
Detection time is 20ms × 50PRB=1000ms.
That is, the channel mapping method and channel detection method of tdd mode according to embodiments of the present invention maintain
With fdd mode identical Channel Detection Time, any extra expense is not introduced.It is easily understood that as shown in Figure 10 B
Detection time is merely illustrative, and unrestricted.The channel detection method of tdd mode according to embodiments of the present invention there may be difference
PRB numbers and detection time.
More than, describe channel mapping according to embodiments of the present invention and the method and dress that detect referring to figs. 1 to Figure 10 B
Put, base station and user equipment.Channel mapping method, device and base station for tdd mode according to embodiments of the present invention, its
It can be configured on the basis of the main signal sequences Design of fdd mode according to the uplink-downlink of tdd mode, it is real
The reasonable mapping of existing master sync signal (PSS), auxiliary synchronous signals (SSS) and Physical Broadcast Channel (PBCH) etc., while need not draw
Enter extra expense.In addition, the channel detection method, device and user equipment for tdd mode according to embodiments of the present invention,
It can be detected to realize master sync signal (PSS), auxiliary synchronous letter exactly based on the channel mapping scheme for tdd mode
Number (SSS) and Physical Broadcast Channel (PBCH) etc., to complete the processes such as cell searching is synchronous.
It should be noted that in this manual, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Finally, it is to be noted that, a series of above-mentioned processing are not only included with order described here in temporal sequence
The processing of execution, and the processing including performing parallel or respectively rather than in chronological order.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of required hardware platform to realize, naturally it is also possible to is all implemented by hardware.Based on such understanding,
What technical scheme contributed to background technology can be embodied in the form of software product in whole or in part,
The computer software product can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are making
Obtain a computer equipment (can be personal computer, server, or network equipment etc.) and perform each embodiment of the present invention
Or the method described in some parts of embodiment.
The present invention is described in detail above, principle and embodiment party of the specific case used herein to the present invention
Formula is set forth, and the explanation of above example is only intended to help the method and its core concept for understanding the present invention；It is meanwhile right
In those of ordinary skill in the art, according to the thought of the present invention, change is had in specific embodiments and applications
Part, in summary, this specification content should not be construed as limiting the invention.
Claims (16)
1. a kind of channel mapping method of time division duplex (TDD) pattern, including：
In first carrier frequency, the first broadcast channel and the second broadcast channel are alternately mapped to the up of the tdd mode
In the 6th subframe in multiple subframes that each frame of link-downlink configuration includes, and the 3rd broadcast channel is mapped
Onto the first subframe in the multiple subframe；And
In the second carrier frequency, the first broadcast channel is mapped in the 6th subframe every a frame.
2. channel mapping method as claimed in claim 1, wherein the first carrier frequency and second carrier frequency it
Between there is predetermined frequency shift (FS).
3. channel mapping method as claimed in claim 1 or 2, wherein first broadcast channel, second broadcast channel
It is primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively with the 3rd broadcast channel.
4. a kind of channel mapping device of time division duplex (TDD) pattern, including：
First map unit, it is configured in first carrier frequency, the first broadcast channel and the second broadcast channel is alternately mapped
In the 6th subframe in multiple subframes that each frame configured to the uplink-downlink of the tdd mode includes, and
3rd broadcast channel is mapped in the first subframe in the multiple subframe；And
Second map unit, it is configured in the second carrier frequency, the first broadcast channel is mapped to the described 6th every a frame
In subframe.
5. channel mapping device as claimed in claim 4, wherein the first carrier frequency and second carrier frequency it
Between there is predetermined frequency shift (FS).
6. the channel mapping device as described in claim 4 or 5, wherein first broadcast channel, second broadcast channel
It is primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively with the 3rd broadcast channel.
7. a kind of base station of time division duplex (TDD) pattern, including channel mapping device as claimed in claim 4.
8. the channel detection method in a kind of user equipment of time division duplex (TDD) pattern, including：
The frame that the uplink-downlink of the tdd mode received with the scanning of predetermined frequency range configures, until in specific load
Wave frequency rate detects the first broadcast channel；
In the next frame for the frame that special carrier frequency scanning receives, wherein
In the case of the second broadcast channel is detected in the next frame, the special carrier frequency is first carrier frequency,
The next frame is frequency scanned in the first carrier, to detect the 3rd broadcast channel；
In the case of second broadcast channel is not detected by the next frame, the special carrier frequency is the second carrier wave
Frequency, the next frame is frequency scanned in the first carrier, to detect second broadcast channel, and described first
Carrier frequency scans the next frame, to detect the 3rd broadcast channel.
9. channel detection method as claimed in claim 8, wherein
There is predetermined frequency shift (FS) between the first carrier frequency and second carrier frequency.
10. channel detection method as claimed in claim 8, wherein
What each frame that first broadcast channel and second broadcast channel are alternately in the first carrier frequency included
The 6th subframe in multiple subframes, the first subframe that the 3rd broadcast channel is in the multiple subframe, and
First broadcast channel is every the 6th subframe in multiple subframes that a frame is in second carrier frequency.
11. the channel detection method as described in any one of claim 8 to 10, wherein first broadcast channel, described
Two broadcast channels and the 3rd broadcast channel are primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively.
12. a kind of Channel Detection device of time division duplex (TDD) pattern, including：
Receiving unit, it is configured to receive the signal frame of the uplink-downlink configuration of the tdd mode；And
Channel detection unit, the uplink-downlink for the tdd mode for being configured to receive with the scanning of predetermined frequency range configure
A frame, until detecting the first broadcast channel in special carrier frequency；Described in being received in special carrier frequency scanning
The next frame of one frame, wherein
In the case of the second broadcast channel is detected in the next frame, the special carrier frequency is first carrier frequency,
The next frame is frequency scanned in the first carrier, to detect the 3rd broadcast channel；
In the case of second broadcast channel is not detected by the next frame, the special carrier frequency is the second carrier wave
Frequency, the next frame is frequency scanned in the first carrier, to detect second broadcast channel, and described first
Carrier frequency scans the next frame, to detect the 3rd broadcast channel.
13. Channel Detection device as claimed in claim 12, wherein
There is predetermined frequency shift (FS) between the first carrier frequency and second carrier frequency.
14. Channel Detection device as claimed in claim 12, wherein
What each frame that first broadcast channel and second broadcast channel are alternately in the first carrier frequency included
The 6th subframe in multiple subframes, the first subframe that the 3rd broadcast channel is in the multiple subframe, and
First broadcast channel is every the 6th subframe in multiple subframes that a frame is in second carrier frequency.
15. the Channel Detection device as described in any one of claim 12 to 14, wherein first broadcast channel, described
Two broadcast channels and the 3rd broadcast channel are primary synchronization channel, auxiliary synchronization channel and Physical Broadcast Channel respectively.
16. a kind of user equipment of time division duplex (TDD) pattern, including Channel Detection device as claimed in claim 12.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640659.2A CN107689861A (en) | 2016-08-05 | 2016-08-05 | Channel maps and method and apparatus, base station and the user equipment of detection |
| US16/323,241 US20190173659A1 (en) | 2016-08-05 | 2017-08-04 | Method and apparatus for channel mapping and detecting base station and user equipment |
| EP17836427.9A EP3496326A1 (en) | 2016-08-05 | 2017-08-04 | Method and device for mapping and detecting channel, base station and user equipment |
| PCT/CN2017/096005 WO2018024246A1 (en) | 2016-08-05 | 2017-08-04 | Method and device for mapping and detecting channel, base station and user equipment |
| JP2019506166A JP2019527984A (en) | 2016-08-05 | 2017-08-04 | Method and apparatus for mapping and detecting channel, base station, and user equipment |
| CN201780045974.3A CN109478994A (en) | 2016-08-05 | 2017-08-04 | Method and apparatus, base station and the user equipment of channel mapping and detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640659.2A CN107689861A (en) | 2016-08-05 | 2016-08-05 | Channel maps and method and apparatus, base station and the user equipment of detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107689861A true CN107689861A (en) | 2018-02-13 |
Family
ID=61072796
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610640659.2A Pending CN107689861A (en) | 2016-08-05 | 2016-08-05 | Channel maps and method and apparatus, base station and the user equipment of detection |
| CN201780045974.3A Pending CN109478994A (en) | 2016-08-05 | 2017-08-04 | Method and apparatus, base station and the user equipment of channel mapping and detection |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201780045974.3A Pending CN109478994A (en) | 2016-08-05 | 2017-08-04 | Method and apparatus, base station and the user equipment of channel mapping and detection |
Country Status (5)
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| US (1) | US20190173659A1 (en) |
| EP (1) | EP3496326A1 (en) |
| JP (1) | JP2019527984A (en) |
| CN (2) | CN107689861A (en) |
| WO (1) | WO2018024246A1 (en) |
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| US10939394B2 (en) * | 2017-07-28 | 2021-03-02 | Qualcomm Incorporated | Measurement synchronization signals (SS) |
| CN111247764B (en) * | 2017-08-21 | 2023-06-16 | 诺基亚技术有限公司 | Method and apparatus for configuring TDD operation of narrowband Internet of things communication system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080092222A (en) * | 2007-04-11 | 2008-10-15 | 엘지전자 주식회사 | Data transmission method in tdd system |
| CN101527595B (en) * | 2008-03-07 | 2013-02-27 | 中兴通讯股份有限公司 | Frame structure of time division duplex system and method for sending synchronous signals |
| CN102055517A (en) * | 2009-11-02 | 2011-05-11 | 中兴通讯股份有限公司 | Mapping method of reference signal and base station adopted in mapping method |
| GB2487909B8 (en) * | 2011-02-04 | 2015-01-21 | Sca Ipla Holdings Inc | Telecommunications method and system |
| GB2487906B (en) * | 2011-02-04 | 2015-02-25 | Wireless Tech Solutions Llc | Telecommunication method and system |
| US9178674B2 (en) * | 2012-04-03 | 2015-11-03 | Lg Electronics Inc. | Method and apparatus for transmitting reference signals |
| KR102221332B1 (en) * | 2013-11-13 | 2021-03-02 | 삼성전자 주식회사 | Method and apparatus for handling a Power headroom report and a hybrid automatic repeat request in a mobile communication system |
| EP2897318B1 (en) * | 2014-01-21 | 2017-09-06 | Panasonic Intellectual Property Corporation of America | TDD uplink/downlink configuration enhancements |
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2016
- 2016-08-05 CN CN201610640659.2A patent/CN107689861A/en active Pending
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2017
- 2017-08-04 WO PCT/CN2017/096005 patent/WO2018024246A1/en unknown
- 2017-08-04 US US16/323,241 patent/US20190173659A1/en not_active Abandoned
- 2017-08-04 CN CN201780045974.3A patent/CN109478994A/en active Pending
- 2017-08-04 JP JP2019506166A patent/JP2019527984A/en active Pending
- 2017-08-04 EP EP17836427.9A patent/EP3496326A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN109478994A (en) | 2019-03-15 |
| US20190173659A1 (en) | 2019-06-06 |
| EP3496326A1 (en) | 2019-06-12 |
| JP2019527984A (en) | 2019-10-03 |
| WO2018024246A1 (en) | 2018-02-08 |
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